NBS, a well-known American high-end audio cable manufacturer. It has supported my home system for many years, but I am selling it to return to the original components. NBS Professional III power cable 1.8m The resolution, realism, and sound pressure have improved, making the entire system feel upgraded. The downside is that the cable itself is very stiff and difficult to handle. I've used it for many years, so it feels presumptuous to call it used; perhaps "vintage" is a better description... Retail price: 182,520 yen